Thread: Cross compiling C + + and C + + wrapper

Hi,

I have sources of C + + that I will compile on Linux ultimately be used on windows (C #). Ouch! Ouch! Ouch!
So I tried some tests but in vain so far ...

My tux.h file (I am not the cpp that are irrelevant) Linux is:

Code:

1.	# ifndef TUX_H
2.	# define TUX_H
3.	DLL_EXPORT # define __declspec (dllexport)
4.	
5.	extern "C" (
6.	class DLL_EXPORT Tux
7.	(
8.	private:
9.	const char * NAME;
10.	public:
11.	Tux (void) (NAME = "Racer";)
12.	const char * __stdcall getName ();
13.	);
14.	)
15.	# endif / / TUX_H

I compile with mingw32 on linux:

Code:

1.	mingw32msvc-i586-g + +-Wall-shared-o tux.cc tux.dll-Wl, - output-def, tux.def

I turn on Windows ...
I created the lib:

Code:

1.	lib / def: tux.def

I created my VSC + + project (CLR can later call my class from C #).
I enclose my tux.h I put tux.dll and tux.lib in the debug directory.
I write my wrapper WrappingUx.h:

Code:

1.	# include "stdafx.h"
2.	# include "tux.h"
3.	# pragma comment (lib, ". / tux.lib)
4.	# include <msclr\auto_handle.h>
5.	# pragma once
6.	
7.	public ref class TuxWrapper
8.	(
9.	
10.	private:
11.	Tux m_pTux *;
12.	public:
13.	TuxWrapper ();
14.	~ TuxWrapper ();
15.	System:: String ^ getName ();
16.	);

It compiles but the linkage ... crash:

Code:

Error 1 error LNK2028: unresolved token (0A00000D) "public: char const * __stdcall Tux:: getName (void)" (? GetName Tux @ @ @ $ $ FQAGPBDXZ) referenced in function "public: class System:: String ^ __clrcall TuxWrapper :: getName (void) "(? TuxWrapper getName @ @ @ $ $ FQ $ $ AAMP AAVString @ System @ @ XZ) WrappingUx.obj WrappingUx 
Error 2 error LNK2019: unresolved external symbol "public: char const * __stdcall Tux:: getName (void)" (? GetName Tux @ @ @ $ $ FQAGPBDXZ) referenced in function "public: class System:: String ^ __clrcall TuxWrapper: getName (void) "(? TuxWrapper getName @ @ @ $ $ FQ $ $ AAMP AAVString @ System @ @ XZ) WrappingUx.obj WrappingUx 
Error 3 fatal error LNK1120: 2 unresolved externals C: \ Work \ Leny \ PPC \ Tests \ CrossCompilation \ C # \ TestDllImport \ Debug \ WrappingUx.dll WrappingUx

And then I dry them outright. I tried to play with extern, __stdcall, dllexport, .... nothing to do

Someone would have any idea of the problem?
An alternative?
The info that might help?

Thank you in advance for your help.

your debug directory is part of the search paths. lib?

Another project is in VC + +, I just copy the dll and lib in the output directory and ca roule (I confess I have not yet looked in visual studio where I had to specify the directory of dll and libs

You think it is just that? For a full VS project (ie Tux.dll done in VS) it works. With Tux.dll done under mingw32-g + + / Linux, it works more

Thank you from the hand

He is just saying it can not find the binary corresponding to your Tux.cpp: tux.lib

Right-click your project in VS> Properties> Linker> Input> first line.

ok. I put my lib next to my sources and includes the macro $ (intputdir) in the properties of the linkage project. (well it will prettiest in production).

But there should still see a path to the cxx wrong:

Code:

Error 1 fatal error LNK1104: can not open file'........  TestDllImport  WrappingUx . Obj 'WrappingUx WrappingUx

The. Obj are generated in the Debug directory, right?
Another ownership change?

thank you for your help because I get depressed (import a single class, and I galley ...)

Otherwise, the tux.h and my method seems correct?
An alternative?

Well, is that even when I find what this error means ... why I am looking for. obj in InputDir ...